Home / 4,207.40-6,311.06-2,015.60

Finding the Fourth Proportional to 4,207.40, 6,311.06 and 2,015.60

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Solution

The fourth proportional to 4,207.40, 6,311.06 and 2,015.60 is: 3,023.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.40 : 6,311.06 = 2,015.60 : x
  2. Step 2: Convert to fraction form
    4,207.40/6,311.06 = 2,015.60/x
  3. Step 3: Cross multiply
    4,207.40x = 6,311.06 × 2,015.60
  4. Step 4: Simplify right side
    4,207.40x = 12,720,572.54
  5. Step 5: Solve for x
    x = 12,720,572.54/4,207.40
  6. Step 6: Final answer
    x = 3,023.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.